Uncle Richard intoned a chapter from the Bible and improvised a prayer.理查德叔叔吟诵了《圣经》中的一章，又即兴作了一段祈祷文。In times of crisis special processions were staged to frighten away evil powers.在危难时刻要念特殊的列队行进祈祷文以驱除恶魔。Not all Psalms are hymns or prayers.圣歌并不都是赞美诗和祈祷文。